PSC H146: Quality Control – Water Purification and Sewage Treatment Equipment
H146 is the product and service code (PSC) federal agencies use for quality control – water purification and sewage treatment equipment, in the quality control services group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 2
Open contracts with PSC H146, due soonest
- FCC BUTNER - WATER CHEMICAL TESTING AND CONSULTATION SERVICES
✦ The Federal Bureau of Prisons (Field Acquisition Office) wants water chemical testing and consultation services for the Federal Correctional Complex in Butner, NC. It plans a…
Due in 19 daysOct 30, 2026
- Lagoon Aeration
✦ The USDA Forest Service plans to buy installation of a microbubble lagoon aeration system, with the related electrical work, at Mammoth Cave, KY. It is a presolicitation (an…
Due in 770 daysNov 19, 2028
Where H146 sits in the PSC Manual
- Category: Service
- Group H: Quality Control, Test, Inspection
- Group H1: Quality Control Services
- Code H146: Quality Control – Water Purification and Sewage Treatment Equipment
NAICS codes used with PSC H146
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with H146 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 221320 | Sewage Treatment Facilities | On 1 open |
| 325998 | All Other Miscellaneous Chemical Product and Preparation Manufacturing | On 1 open |
On open notices right now, the most H146 work comes from Department of Agriculture and Department of Justice.
Related PSC codes
- H110 Quality Control – Weapons
- H111 Quality Control – Nuclear Ordnance
- H112 Quality Control – Fire Control Equipment
- H113 Quality Control – Ammunition and Explosives
- H114 Quality Control – Guided Missiles
- H115 Quality Control – Aircraft and Airframe Structural Components
- H116 Quality Control – Aircraft Components and Accessories
- H117 Quality Control – Aircraft Launching, Landing, and Ground Handling Equipment
- H118 Quality Control – Space Vehicles
- H119 Quality Control – Ships, Small Craft, Pontoons, and Floating Docks
Frequently asked questions
What is PSC H146?
H146 is the service code in the federal Product and Service Code (PSC) Manual for quality control – water purification and sewage treatment equipment, under H (Quality Control, Test, Inspection) and H1 (Quality Control Services). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC H146?
Most federal contract dollars under PSC H146 go with NAICS 221320 (Sewage Treatment Facilities), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC H146?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 2 open notices use PSC H146 right now. FedReady can match new ones to your business and email you, free.